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Advent calendar 2015
8 December
All 2015 advent puzzles
~
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What is the largest number of factors which a number less than a million has?
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720720 has 240 factors.
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Tags
chess
elections
probabilty
lines
range
sequences
neighbours
consecutive integers
matrices
axes
square numbers
dates
rectangles
money
palindromes
perimeter
rugby
chalkdust crossnumber
dominos
graphs
multiplaction squares
perfect numbers
expansions
polygons
square roots
shapes
trigonometry
tiling
median
arrows
medians
menace
taxicab geometry
regular shapes
cubics
quadrilaterals
games
geometric means
crosswords
ave
number
gerrymandering
differentiation
volume
proportion
geometric mean
partitions
parabolas
squares
routes
percentages
sums
determinants
scales
pascal's triangle
prime factors
algebra
folding tube maps
multiplication
mean
even numbers
circles
cryptic crossnumbers
calculus
grids
powers
logic
area
digital clocks
clocks
integers
doubling
star numbers
chocolate
numbers
indices
fractions
probability
combinatorics
triangle numbers
surds
books
albgebra
crossnumbers
the only crossnumber
complex numbers
floors
triangles
binary
unit fractions
digits
coins
bases
remainders
balancing
spheres
division
speed
hexagons
sets
lists
cryptic clues
odd numbers
dodecagons
cube numbers
advent
2d shapes
shape
integration
sum to infinity
pentagons
time
addition
geometry
wordplay
factors
prime numbers
digital products
sport
angles
square grids
functions
decahedra
multiples
christmas
quadratics
factorials
ellipses
tangents
consecutive numbers
people maths
polynomials
xor
irreducible numbers
symmetry
tournaments
cards
dice
means
planes
averages
3d shapes
products
coordinates
colouring
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